Last week, Tom Gilson, Thinking Christian posted a brief review of Philip Jenkins’s The Next Christendom: The Coming of Global Christianity (Revised and Expanded Edition), (Oxford University Press, 2007.) 261 pages plus 45 pages of endnotes, plus index. (Amazon Price US$14.95). Note: Jenkins is quantifying and popularizing a dynamic that Andrew Walls and Kwame Bediako (or here or Google their names) have been predicting for decades.
I have the book myself, but especially liked the simple graphic that Tom posts.